1K2D

Crystal structure of the autoimmune MHC class II I-Au complexed with myelin basic protein 1-11 at 2.2A

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1k2da1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Class II MHC alpha chain, C-terminal domain	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d1k2da2	Alpha and beta proteins (a+b)	MHC antigen-recognition domain	MHC antigen-recognition domain	MHC antigen-recognition domain	Class II MHC alpha chain, N-terminal domain	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d1k2da3	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d1k2db1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Class II MHC beta chain, C-terminal domain	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d1k2db2	Alpha and beta proteins (a+b)	MHC antigen-recognition domain	MHC antigen-recognition domain	MHC antigen-recognition domain	Class II MHC beta chain, N-terminal domain	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	MHC antigen-recognition domain	8055640	3000521	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8054685	3000071	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	MHC antigen-recognition domain	8036132	3000521	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8054721	3000071	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	C1-set_2	e1k2dA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
A	MHC_II_alpha	e1k2dA2	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_II_alpha	ECOD (1.6)
B	C1-set_2	e1k2dB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
B	MHC_II_beta	e1k2dB2	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_II_beta	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.320.10	Alpha Beta	Roll	Class II Histocompatibility Antigen, M Beta Chain	Chain B, domain 1	CATH (4.3.0)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	3.10.320.10	Alpha Beta	Roll	Class II Histocompatibility Antigen, M Beta Chain	Chain B, domain 1	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
A	H-2 Class II Histocompatibility Antigen, A-U	PEPTIDE-II-ALPHA	Mus musculus (house mouse)	MH2-AAu, MH2-AA-N2W	G-DOMAIN G-ALPHA, C-LIKE-DOMAIN C-LIKE	MH	(PEPTIDE-G-ALPHA-C-LIKE_II-BETA)	IMGT (202415-0)
B	H-2 Class II Histocompatibility Antigen, A-U	II-BETA	Mus musculus (house mouse)	H2-ABu	G-DOMAIN G-BETA, C-LIKE-DOMAIN C-LIKE	MH	(PEPTIDE-G-ALPHA-C-LIKE_II-BETA)	IMGT (202415-0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain	-	Domain
A	PF00993	Class II histocompatibility antigen, alpha domain (MHC_II_alpha)	Class II histocompatibility antigen, alpha domain	-	Domain
B	PF00969	Class II histocompatibility antigen, beta domain (MHC_II_beta)	Class II histocompatibility antigen, beta domain	-	Domain
B	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	H-2 class II histocompatibility antigen, A-U alpha chain	binding antigen binding peptide antigen binding peptide binding protein-containing complex binding MHC protein complex binding MHC class II protein complex binding	regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response antigen processing and presentation of exogenous peptide antigen via MHC class II regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response antigen processing and presentation of exogenous peptide antigen via MHC class II antigen processing and presentation antigen processing and presentation of peptide or polysaccharide antigen via MHC class II antigen processing and presentation of peptide antigen via MHC class II antigen processing and presentation of exogenous peptide antigen antigen processing and presentation of peptide antigen antigen processing and presentation of exogenous antigen negative regulation of lymphocyte proliferation multicellular organismal process regulation of cellular process regulation of leukocyte activation negative regulation of biological process regulation of cell activation negative regulation of T cell proliferation negative regulation of cell adhesion negative regulation of leukocyte proliferation T cell activation lymphocyte proliferation regulation of leukocyte proliferation cell population proliferation negative regulation of T cell activation negative regulation of leukocyte cell-cell adhesion regulation of cell population proliferation mononuclear cell proliferation negative regulation of cell-cell adhesion regulation of leukocyte cell-cell adhesion negative regulation of multicellular organismal process negative regulation of leukocyte activation lymphocyte activation negative regulation of lymphocyte activation leukocyte proliferation leukocyte cell-cell adhesion leukocyte activation negative regulation of mononuclear cell proliferation cell adhesion cell-cell adhesion negative regulation of cellular process regulation of multicellular organismal process regulation of cell-cell adhesion T cell proliferation regulation of lymphocyte proliferation negative regulation of cell population proliferation regulation of cell adhesion cell activation regulation of T cell activation negative regulation of cell activation regulation of T cell proliferation negative regulation of immune system process regulation of mononuclear cell proliferation cellular process regulation of lymphocyte activation peptide antigen assembly with MHC class II protein complex protein-containing complex organization peptide antigen assembly with MHC protein complex MHC class II protein complex assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex assembly MHC protein complex assembly cellular component organization or biogenesis positive regulation of leukocyte cell-cell adhesion positive regulation of cell-cell adhesion positive regulation of lymphocyte activation positive regulation of cell activation positive regulation of leukocyte activation positive regulation of cellular process positive regulation of T cell activation positive regulation of cell adhesion positive regulation of multicellular organismal process regulation of leukocyte differentiation mononuclear cell differentiation regulation of cell differentiation lymphocyte differentiation positive regulation of T cell differentiation regulation of cell development positive regulation of developmental process multicellular organism development cell differentiation anatomical structure development T cell differentiation developmental process positive regulation of cell development leukocyte differentiation cellular developmental process regulation of developmental process cell development regulation of T cell differentiation positive regulation of hemopoiesis positive regulation of cell differentiation regulation of lymphocyte differentiation regulation of multicellular organismal development hemopoiesis regulation of hemopoiesis positive regulation of leukocyte differentiation positive regulation of lymphocyte differentiation	cell periphery cell surface membrane plasma membrane cellular anatomical entity external side of plasma membrane side of membrane MHC protein complex MHC class II protein complex protein-containing complex plasma membrane protein complex membrane protein complex membrane-bounded organelle endosome membrane cell periphery cell surface membrane plasma membrane cellular anatomical entity external side of plasma membrane side of membrane MHC protein complex MHC class II protein complex protein-containing complex plasma membrane protein complex membrane protein complex membrane-bounded organelle endosome membrane intracellular anatomical structure endosome intracellular vesicle late endosome membrane intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane organelle late endosome cytoplasm vesicle organelle membrane lytic vacuole vacuole lysosome vacuolar membrane lytic vacuole membrane lysosomal membrane
B	H-2 class II histocompatibility antigen, A-U beta chain	binding antigen binding peptide antigen binding peptide binding protein-containing complex binding MHC protein complex binding MHC class II protein complex binding	regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process peptide antigen assembly with MHC class II protein complex protein-containing complex organization regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process peptide antigen assembly with MHC class II protein complex protein-containing complex organization peptide antigen assembly with MHC protein complex MHC class II protein complex assembly cellular component organization cellular component biogenesis antigen processing and presentation antigen processing and presentation of peptide or polysaccharide antigen via MHC class II cellular component assembly protein-containing complex assembly antigen processing and presentation of peptide antigen via MHC class II cellular process MHC protein complex assembly cellular component organization or biogenesis antigen processing and presentation of peptide antigen adaptive immune response antigen processing and presentation of exogenous peptide antigen via MHC class II antigen processing and presentation of exogenous peptide antigen antigen processing and presentation of exogenous antigen multicellular organismal process regulation of cellular process regulation of leukocyte activation regulation of cell activation positive regulation of leukocyte cell-cell adhesion lymphocyte activation leukocyte cell-cell adhesion leukocyte activation positive regulation of cell-cell adhesion positive regulation of lymphocyte activation positive regulation of cell activation cell adhesion cell-cell adhesion T cell activation positive regulation of leukocyte activation regulation of multicellular organismal process regulation of cell-cell adhesion positive regulation of cellular process positive regulation of T cell activation positive regulation of cell adhesion regulation of cell adhesion cell activation regulation of T cell activation regulation of leukocyte cell-cell adhesion positive regulation of multicellular organismal process regulation of lymphocyte activation	membrane-bounded organelle intracellular anatomical structure early endosome endosome intracellular vesicle cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle vacuolar membrane membrane-bounded organelle intracellular anatomical structure early endosome endosome intracellular vesicle cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle vacuolar membrane membrane lytic vacuole vacuole lytic vacuole membrane bounding membrane of organelle lysosomal membrane organelle membrane lysosome Golgi apparatus cell surface MHC protein complex cell periphery MHC class II protein complex protein-containing complex plasma membrane protein complex plasma membrane membrane protein complex endosome membrane late endosome membrane cytoplasmic vesicle membrane vesicle membrane late endosome multivesicular body
C [auth P]	Myelin Basic Protein peptide with 8 residue linker peptide	structural molecule activity structural constituent of myelin sheath protein binding binding enzyme binding protease binding lipid binding calmodulin binding	developmental process multicellular organism development multicellular organismal process axon ensheathment ensheathment of neurons anatomical structure development cellular process nervous system development system development central nervous system development response to stimulus immune response immune system process interleukin-6 production developmental process multicellular organism development multicellular organismal process axon ensheathment ensheathment of neurons anatomical structure development cellular process nervous system development system development central nervous system development response to stimulus immune response immune system process interleukin-6 production regulation of cellular process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of interleukin-6 production regulation of interleukin-6 production positive regulation of metabolic process organic substance metabolic process positive regulation of biosynthetic process regulation of cytokine production organic substance biosynthetic process cytokine production regulation of multicellular organismal process positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process positive regulation of cellular biosynthetic process response to chemical response to toxic substance negative regulation of biological process embryo development negative regulation of cell adhesion regulation of cell-cell adhesion involved in gastrulation heterotypic cell-cell adhesion cell adhesion cell-cell adhesion negative regulation of cellular process regulation of cell-cell adhesion regulation of heterotypic cell-cell adhesion cell-cell adhesion via plasma-membrane adhesion molecules cell-cell adhesion involved in gastrulation regulation of cell adhesion embryonic morphogenesis gastrulation anatomical structure morphogenesis negative regulation of heterotypic cell-cell adhesion negative regulation of cell-cell adhesion cellular response to stimulus signaling intracellular signal transduction cell communication intracellular signaling cassette MAPK cascade signal transduction chemokine (C-X-C motif) ligand 2 production regulation of chemokine (C-X-C motif) ligand 2 production positive regulation of chemokine (C-X-C motif) ligand 2 production regulation of chemokine production chemokine production positive regulation of chemokine production head development animal organ development brain development substantia nigra development midbrain development neural nucleus development regulation of catalytic activity positive regulation of protein metabolic process positive regulation of peptidase activity positive regulation of metalloendopeptidase activity regulation of primary metabolic process positive regulation of molecular function regulation of proteolysis proteolysis regulation of endopeptidase activity protein metabolic process organonitrogen compound metabolic process regulation of protein metabolic process regulation of peptidase activity positive regulation of catalytic activity primary metabolic process regulation of molecular function regulation of metalloendopeptidase activity positive regulation of hydrolase activity regulation of metallopeptidase activity regulation of hydrolase activity positive regulation of endopeptidase activity positive regulation of proteolysis positive regulation of metallopeptidase activity system process sensory perception nervous system process sensory perception of sound sensory perception of mechanical stimulus trans-synaptic signaling synaptic signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission membrane organization cellular component organization cellular component organization or biogenesis maintenance of blood-brain barrier multicellular organismal-level homeostasis homeostatic process anatomical structure homeostasis tissue homeostasis myelination	myelin sheath cellular anatomical entity compact myelin axon cell projection internode region of axon main axon neuron projection plasma membrane bounded cell projection cell surface intracellular anatomical structure cytoplasm cytosol cell periphery myelin sheath cellular anatomical entity compact myelin axon cell projection internode region of axon main axon neuron projection plasma membrane bounded cell projection cell surface intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane protein-containing complex synapse cell junction somatodendritic compartment cell body neuronal cell body membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A	IPR003597	Immunoglobulin C1-set	Domain
A	IPR011162	MHC classes I/II-like antigen recognition protein	Homologous Superfamily
A	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site
A	IPR014745	MHC class II, alpha/beta chain, N-terminal	Homologous Superfamily
A	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A	IPR007110	Immunoglobulin-like domain	Domain
A	IPR001003	MHC class II, alpha chain, N-terminal	Domain
B	IPR000353	MHC class II, beta chain, N-terminal	Domain
B	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
B	IPR014745	MHC class II, alpha/beta chain, N-terminal	Homologous Superfamily
B	IPR003597	Immunoglobulin C1-set	Domain
B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B	IPR011162	MHC classes I/II-like antigen recognition protein	Homologous Superfamily
B	IPR007110	Immunoglobulin-like domain	Domain
B	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site
C [auth P]	IPR000548	Myelin basic protein	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C [auth P]	Pharos: P02686	neuromyelitis optica experimental autoimmune encephalomyelitis demyelinating disease malignant mesothelioma myopathy osteosarcoma peripheral neuropathy primitive neuroectodermal tumor acute disseminated encephalomyelitis rheumatoid arthritis atypical teratoid rhabdoid tumor thoracic aortic aneurysm Clinically Isolated Syndrome, CNS Demyelinating Duchenne muscular dystrophy invasive ductal breast carcinoma neuromyelitis optica experimental autoimmune encephalomyelitis demyelinating disease malignant mesothelioma myopathy osteosarcoma peripheral neuropathy primitive neuroectodermal tumor acute disseminated encephalomyelitis rheumatoid arthritis atypical teratoid rhabdoid tumor thoracic aortic aneurysm Clinically Isolated Syndrome, CNS Demyelinating Duchenne muscular dystrophy invasive ductal breast carcinoma malignant ependymoma medulloblastoma ovarian cancer Pick disease progressive supranuclear palsy schizophrenia autoimmune disease of central nervous system cutaneous lupus erythematosus dermatomyositis large cell medulloblastoma malignant glioma multiple sclerosis oligodendroglioma pancreatic ductal adenocarcinoma pilocytic astrocytoma psoriasis astrocytic tumor subependymal giant cell astrocytoma breast cancer Down syndrome glioblastoma lung cancer

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.